Lamp for a vehicle



FIG. 1 is a front elevational view of a lamp for a vehicle, embodying my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is an underneath plan view thereof; and

FIG. 6 is a perspective view thereof. 

The ornamental design for a lamp for a vehicle, as shown and described. 